Virago
A virago is a woman who demonstrates exemplary and heroic qualities. The word comes from the Latin word vir, meaning 'man' (cf. virile) to which the suffix -ago is added, a suffix that effectively re-genders the word to be female.
The word virago has almost always had an association with cultural gender transgression. A virago, of whatever excellence, was still identified by her gender. There are recorded instances of viragos (such as Joan of Arc) fighting battles, wearing men's clothing, or receiving the tonsure. The word virago could also be used disparagingly, to imply that a virago was not excellent or heroic, but was instead violating cultural norms. Thus virago joined pejoratives such as termagant, mannish, amazonian and shrew to demean women who acted aggressively or like men.